Example of app that Itoa supports

gistfile1.m

#import <Foundation/Foundation.h>
#import <CoreFoundation/CoreFoundation.h>
#import <CoreGraphics/CoreGraphics.h>
#import <QuartzCore/QuartzCore.h>
#import <UIKit/UIKit.h>
#import <objc/runtime.h>

/////////////////////////////////////////////////////////////////////

@interface ApplicationDelegate: NSObject<UIApplicationDelegate> {
@private UIWindow* m_window;
@private UILabel* m_label;
@private UIButton* m_button;
}
@end

@implementation ApplicationDelegate

-(void)dealloc {
	[m_window release];
	[m_label release];
	[m_button release];
	[super dealloc];
}

-(void)onSayHello:(id)sender {
	if (m_label) {
		return;
	}
	m_label=[[UILabel alloc] init];
	m_label.frame=CGRectMake(0,0,150,50);
	m_label.center=CGPointMake(m_window.center.x,m_window.center.y-50);
	m_label.textAlignment=UITextAlignmentCenter;
#ifdef ANDROID
	m_label.text=@"Hello, Android!";
#else
	m_label.text=@"Hello, iOS!";
#endif
	[m_window addSubview:m_label];
}

-(void)applicationDidFinishLaunching:(UIApplication*)application {
	CGRect bounds=[[UIScreen mainScreen] bounds];
	UIWindow* window=[[UIWindow alloc] initWithFrame:bounds];
	window.backgroundColor=[UIColor darkGrayColor];
    
	UIButton* button=[UIButton buttonWithType:UIButtonTypeRoundedRect];
	button.frame=CGRectMake(0,0,150,50);
	button.center=CGPointMake(window.center.x,window.center.y+50);
	[button setTitle:@"Say hello" forState:UIControlStateNormal];
	[button addTarget:self action:@selector(onSayHello:) forControlEvents:UIControlEventTouchUpInside];
	[window addSubview:button];
	m_button=button;
	
	[window makeKeyAndVisible];
	m_window=window;
}

@end

/////////////////////////////////////////////////////////////////////

int main(int argc,char* argv[]) {
	NSAutoreleasePool* pool=[[NSAutoreleasePool alloc] init];
	UIApplicationMain(argc,argv,NULL,@"ApplicationDelegate");
	[pool release];
	return 0;
}